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| author | Akim Demaille <akim.demaille@gmail.com> | 2020-12-31 07:55:05 +0100 |
|---|---|---|
| committer | Akim Demaille <akim.demaille@gmail.com> | 2021-01-23 15:02:49 +0100 |
| commit | 3abad26a2d0c063719745156dc2d40681c5f969d (patch) | |
| tree | 318776a1f8030ea8cd442028ebe169baab94ed6a /tests | |
| parent | 1bac4ecc44f6b7a20b4688b2cb9eeecc91bdb503 (diff) | |
| download | bison-3abad26a2d0c063719745156dc2d40681c5f969d.tar.gz | |
%merge: associate it to its first definition, not the latest
Currently each time we meet %merge we record this location as the
defining location (and symbol). Instead, record the first definition.
In the generated code we go from
yy0->A = merge (*yy0, *yy1);
to
yy0->S = merge (*yy0, *yy1);
where S was indeed the first symbol, and in the diagnostics we go from
glr-regr18.y:30.18-24: error: result type clash on merge function 'merge': <type2> != <type1>
30 | sym2: sym3 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
glr-regr18.y:29.18-24: note: previous declaration
29 | sym1: sym2 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
glr-regr18.y:31.13-19: error: result type clash on merge function 'merge': <type3> != <type2>
31 | sym3: %merge<merge> { $$ = 0; } ;
| ^~~~~~~
glr-regr18.y:30.18-24: note: previous declaration
30 | sym2: sym3 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
to
glr-regr18.y:30.18-24: error: result type clash on merge function 'merge': <type2> != <type1>
30 | sym2: sym3 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
glr-regr18.y:29.18-24: note: previous declaration
29 | sym1: sym2 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
glr-regr18.y:31.13-19: error: result type clash on merge function 'merge': <type3> != <type1>
31 | sym3: %merge<merge> { $$ = 0; } ;
| ^~~~~~~
glr-regr18.y:29.18-24: note: previous declaration
29 | sym1: sym2 %merge<merge> { $$ = $1; } ;
| ^~~~~~~
where both duplicates are reported against definition 1, rather than
using definition 1 as a reference when diagnosing about definition 2,
and then 2 as a reference for 3.
* src/reader.c (record_merge_function_type): Keep the first definition.
* tests/glr-regression.at: Adjust.
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/glr-regression.at | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tests/glr-regression.at b/tests/glr-regression.at index a6deb9c9..51c6ee5e 100644 --- a/tests/glr-regression.at +++ b/tests/glr-regression.at @@ -1682,11 +1682,11 @@ AT_BISON_CHECK([[-o glr-regr18.c -rall -fcaret glr-regr18.y]], 1, [], glr-regr18.y:27.18-24: note: previous declaration 27 | sym1: sym2 %merge<merge> { $$ = $][1; } ; | ^~~~~~~ -glr-regr18.y:29.13-19: error: result type clash on merge function 'merge': <type3> != <type2> +glr-regr18.y:29.13-19: error: result type clash on merge function 'merge': <type3> != <type1> 29 | sym3: %merge<merge> { $$ = 0; } ; | ^~~~~~~ -glr-regr18.y:28.18-24: note: previous declaration - 28 | sym2: sym3 %merge<merge> { $$ = $][1; } ; +glr-regr18.y:27.18-24: note: previous declaration + 27 | sym1: sym2 %merge<merge> { $$ = $][1; } ; | ^~~~~~~ ]]) |